CVE-2009-1030 Cross-site scripting in n/a

Medium 4.3 Published 20 Mar 2009 Updated 7 Aug 2024

Remote attackers can inject arbitrary web script or HTML via the HTTP Host header in WordPress MU, requiring user interaction to execute.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2009-1030?

CVE-2009-1030 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Mar 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in the choose_primary_blog function in wp-includes/wpmu-functions.php in WordPress MU (WPMU) before 2.7 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host header.

Weakness: CWE-79

Which versions are affected by CVE-2009-1030?

It affects 1 product.

Products include Wordpress Wordpress Mu.

How do I fix CVE-2009-1030?

No fix has been published for CVE-2009-1030 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2009-1030 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1030 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-fg2g-28hw-pqvr.